The invention discloses a
phase change energy storage porous material, and a preparation method thereof, and belongs to the technical field of high molecular material. The preparation method of the
phase change energy storage porous material comprises following steps: 1, a
polyvinyl alcohol aqueous solution is prepared; 2, a
phase change microcapsule
emulsion is added into the
polyvinyl alcohol aqueous solution so as to obtain a blended solution, wherein in the blended solution, the
mass ratio of the phase change microcapsule
emulsion to
polyvinyl alcohol is controlled to be (1-5) : 1; 3, theblended solution is subjected to stirring foaming so as to obtain a foam solution; and 4, the foam solution is subjected to
freeze drying so as to obtain the phase change
energy storage porous material. According to the preparation method, solution physical blending foaming method is adopted, so that problems in the prior art that in porous material physical adsorption of phase change microcapsules, adsorption capacity is low, the
bonding strength with a base body is poor, and the blending uniformity and stability of phase change microcapsule
powder with
polymer foaming solution are poor. Thepreparation method is capable of improving the filling capacity of
phase change material microcapsules in porous materials, and the
bonding strength with the base body, and ensuring the dispersion uniformity of the phase change materials in porous materials.